Seachem Pond Matrix aka Pumice?

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DayumDanny

Jack Dempsey
MFK Member
Jun 12, 2012
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Connecticut
So I am looking to buy pond matrix in bulk because they are cheap and I wanted to just fill in the extra spaces in my sump with it. I was looking at some reviews on youtube and stumbled upon this guy.

http://www.youtube.com/watch?v=I7d3aK_tX34

He was saying that it would be cheaper to buy pumice at a local rock yard.

Is seachem pond matrix really only regular pumice rock? Has anyone used ONLY this matrix media in their sump? Good/Bad?

Also anyone actually get pumice from a nearby rock yard?
 
it isnt pumice. atleast not the pumice they sell for veauty supplies... totally different texture and stuff. al i ran on my old 500g was a 100g sump with filter socks and 20L pond matrix. i fed up to 1lb of food at a time and NEVER had ammonia or nitrite and was keeping some pretty big fish.
 
Its "refined" pumice. They refine it to get all of the impurities out is what I was told.
 
According to this website...


Pumice

Description: Volcanic pumice, found at many beaches around NZ. Break the pumice up into small pieces ranging from 10mm to 25mm in size.
Surface Area: Medium approx 25m2 /liter of media
Advantages: Free, reasonable surface area.
Disadvantages: May contain heavy metals and silicates. Will need to be very thoroughly washed before use. Silicates may leach into aquarium leading to unwanted algae. Will slowly clog.
Cost: Free
Best Use: Trickle filters and Canister filters.

Seachem Matrix

Description: Processed pumice. Seachem has taken pumice, broken it up, smoothed the edges and washed it. It is guaranteed free from heavy metals and silicates.
Surface Area: Same as pumice above
Advantages: Ready to use, reasonable surface area
Disadvantages: Expensive, will slowly clog.
Cost: Expensive
Best Use: Trickle filters and Canister filters.
 
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